1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: -p
2 ; RUN: opt -S -passes="simplifycfg<switch-to-lookup>" < %s | FileCheck %s
4 target triple = "x86_64-unknown-linux-gnu"
6 %struct.ham = type <{ i32, i32, i32, i8, i8, [2 x i8] }>
8 @global = external constant [75 x { i32, i32, i32, i8, i8 }]
10 define i1 @zot(i32 %arg) {
13 ; CHECK-NEXT: %0 = icmp ult i32 %arg, 3
14 ; CHECK-NEXT: br i1 %0, label %switch.lookup, label %bb6
15 ; CHECK: switch.lookup:
16 ; CHECK-NEXT: %switch.gep = getelementptr inbounds [3 x ptr], ptr @switch.table.zot, i32 0, i32 %arg
17 ; CHECK-NEXT: %switch.load = load ptr, ptr %switch.gep, align 8
18 ; CHECK-NEXT: br label %bb6
20 ; CHECK-NEXT: %tmp7 = phi ptr [ %switch.load, %switch.lookup ], [ null, %bb ]
21 ; CHECK-NEXT: %tmp8 = icmp eq ptr %tmp7, getelementptr inbounds ([75 x { i32, i32, i32, i8, i8 }], ptr @global, i64 1, i64 0, i32 0)
22 ; CHECK-NEXT: ret i1 %tmp8
25 %tmp = icmp eq i32 %arg, 1
26 br i1 %tmp, label %bb6, label %bb1
29 %tmp2 = icmp eq i32 %arg, 2
30 br i1 %tmp2, label %bb6, label %bb3
33 %tmp4 = icmp eq i32 %arg, 0
34 br i1 %tmp4, label %bb6, label %bb5
39 bb6: ; preds = %bb5, %bb3, %bb1, %bb
40 %tmp7 = phi ptr [ null, %bb5 ], [ getelementptr inbounds ([75 x { i32, i32, i32, i8, i8 }], ptr @global, i64 0, i64 6, i32 0), %bb ], [ null, %bb1 ], [ null, %bb3 ]
41 %tmp8 = icmp eq ptr %tmp7, getelementptr inbounds ([75 x { i32, i32, i32, i8, i8 }], ptr @global, i64 1, i64 0, i32 0)